#diatom — Public Fediverse posts

Operation AMALGAMATE: merge hobbies. Helping Self to help others. HobbyLAB is on the launch pad! Join me to light the fuse. The rocket fuel is being poured into membership starting with the free membership chat group 'Free For All' >>> https://patreon.com/messages/d620009a09414b24b051b8d470043aea
#science #art #Biology #Microscopy #Diatom #Amoeba

`In this study, Thalassiosira weissflogii was transformed into biohybrid microrobots (Mag-Diatoms) while retaining its natural chlorophyll, thereby enabling Mag-Diatom-mediated photodynamic therapy (PDT) without additional drug modification.`

http://dx.doi.org/10.1631/bdm.2500276

#diatom #microrobot #bioengineering

We interrupt the planned programming to let everyone know we have a new paper out! 🚨
Led by Cécile Figus, this work explores what governs the distribution of deep #sea sediment rich in #diatom across the #Paleogene.

Link: https://bg.copernicus.org/articles/22/3029/2025/

After 7,000 years without light and oxygen in #BalticSea mud, researchers bring prehistoric #algae back to life https://phys.org/news/2025-03-years-oxygen-baltic-sea-mud.html

Resurrection of a #diatom after 7000 years from anoxic Baltic Sea sediment: Sarah Bolius et al. https://academic.oup.com/ismej/article/19/1/wrae252/7942337

"Such deposits are like a time capsule containing valuable information about past ecosystems and the inhabiting biological communities, their population development and genetic changes"

#Protists #Diatoms #Microbes

The #diatom genus Nitzschia lost photosynthesis to become free-living heterotrophs. This study shows how #HGT from marine bacteria, followed by #GeneDuplication & #neofunctionalization, allowed them to catabolize #alginate & live off brown algal polysaccharides @PLOSBiology https://plos.io/41WaW8e

The #diatom genus Nitzschia lost photosynthesis to become free-living heterotrophs. This study shows how #HGT from marine bacteria, followed by #GeneDuplication & #neofunctionalization, allowed them to catabolize #alginate & live off brown algal polysaccharides @PLOSBiology https://plos.io/41WaW8e

The #diatom genus Nitzschia lost photosynthesis to become free-living heterotrophs. This study shows how #HGT from marine bacteria, followed by #GeneDuplication & #neofunctionalization, allowed them to catabolize #alginate & live off brown algal polysaccharides @PLOSBiology https://plos.io/41WaW8e

The #diatom genus Nitzschia lost photosynthesis to become free-living heterotrophs. This study shows how #HGT from marine bacteria, followed by #GeneDuplication & #neofunctionalization, allowed them to catabolize #alginate & live off brown algal polysaccharides @PLOSBiology https://plos.io/41WaW8e

The #diatom genus Nitzschia lost photosynthesis to become free-living heterotrophs. This study shows how #HGT from marine bacteria, followed by #GeneDuplication & #neofunctionalization, allowed them to catabolize #alginate & live off brown algal polysaccharides @PLOSBiology https://plos.io/41WaW8e

Water #salinity affects #diatom structure and #metabolism, study shows.

#Nitzschia #global_carbon_cycle #lipids #extracellullar_polysaccharide #photosynthesis

https://phys.org/news/2025-02-salinity-affects-diatom-metabolism.html

Water #salinity affects #diatom structure and #metabolism, study shows.

#Nitzschia #global_carbon_cycle #lipids #extracellullar_polysaccharide #photosynthesis

https://phys.org/news/2025-02-salinity-affects-diatom-metabolism.html

Water #salinity affects #diatom structure and #metabolism, study shows.

#Nitzschia #global_carbon_cycle #lipids #extracellullar_polysaccharide #photosynthesis

https://phys.org/news/2025-02-salinity-affects-diatom-metabolism.html

Water #salinity affects #diatom structure and #metabolism, study shows.

#Nitzschia #global_carbon_cycle #lipids #extracellullar_polysaccharide #photosynthesis

https://phys.org/news/2025-02-salinity-affects-diatom-metabolism.html

Water #salinity affects #diatom structure and #metabolism, study shows.

#Nitzschia #global_carbon_cycle #lipids #extracellullar_polysaccharide #photosynthesis

https://phys.org/news/2025-02-salinity-affects-diatom-metabolism.html

#Phytochromes: The 'eyes' that enable #microalgae to find their way in aquatic depths https://phys.org/news/2024-12-phytochromes-eyes-enable-microalgae-aquatic.html

#Diatom phytochromes integrate the underwater light spectrum to sense depth: Carole Duchêne et al. https://www.nature.com/articles/s41586-024-08301-3

"These photoreceptors enable them to detect changes in the light spectrum in the water column, thereby providing information regarding their vertical position within it."

#Protists #Algae #Diatoms #Microbes #Plankton #Biology #Phytoplankton

I am very happy to share this new paper led by Cécile Figus, which shows the very complex relationship between #diatom prevalence in #Paleogene epicontinental seas, #tectonics, and global #climate.
https://cp.copernicus.org/articles/20/2629/2024/

Researchers bring 60-year-old #dormant #algae cells to life.

#resting_spore #sediment #climate_change #gene_expression #diatom #heat_shock

https://phys.org/news/2024-04-year-dormant-algae-cells-life.html

Some #microalgae smartly switch energy systems to support growth under nutrient limitation https://microbiologycommunity.nature.com/posts/some-microalgae-smartly-switch-energy-systems-to-support-growth-under-nutrient-limitation

#Plastid-localized #xanthorhodopsin increases #diatom biomass and ecosystem productivity in iron-limited surface oceans https://www.nature.com/articles/s41564-023-01498-5

"marine #diatoms, a globally important group of #algae can switch between #photosynthesis and a light-driven #rhodopsin proton pump to support growth in iron-deprived waters"

#protists #microbes #metabolism #plankton

Some #microalgae smartly switch energy systems to support growth under nutrient limitation https://microbiologycommunity.nature.com/posts/some-microalgae-smartly-switch-energy-systems-to-support-growth-under-nutrient-limitation

#Plastid-localized #xanthorhodopsin increases #diatom biomass and ecosystem productivity in iron-limited surface oceans https://www.nature.com/articles/s41564-023-01498-5

"marine #diatoms, a globally important group of #algae can switch between #photosynthesis and a light-driven #rhodopsin proton pump to support growth in iron-deprived waters"

#protists #microbes #metabolism #plankton

Some #microalgae smartly switch energy systems to support growth under nutrient limitation https://microbiologycommunity.nature.com/posts/some-microalgae-smartly-switch-energy-systems-to-support-growth-under-nutrient-limitation

#Plastid-localized #xanthorhodopsin increases #diatom biomass and ecosystem productivity in iron-limited surface oceans https://www.nature.com/articles/s41564-023-01498-5

"marine #diatoms, a globally important group of #algae can switch between #photosynthesis and a light-driven #rhodopsin proton pump to support growth in iron-deprived waters"

#protists #microbes #metabolism #plankton

Some #microalgae smartly switch energy systems to support growth under nutrient limitation https://microbiologycommunity.nature.com/posts/some-microalgae-smartly-switch-energy-systems-to-support-growth-under-nutrient-limitation

#Plastid-localized #xanthorhodopsin increases #diatom biomass and ecosystem productivity in iron-limited surface oceans https://www.nature.com/articles/s41564-023-01498-5

"marine #diatoms, a globally important group of #algae can switch between #photosynthesis and a light-driven #rhodopsin proton pump to support growth in iron-deprived waters"

#protists #microbes #metabolism #plankton

Some #microalgae smartly switch energy systems to support growth under nutrient limitation https://microbiologycommunity.nature.com/posts/some-microalgae-smartly-switch-energy-systems-to-support-growth-under-nutrient-limitation

#Plastid-localized #xanthorhodopsin increases #diatom biomass and ecosystem productivity in iron-limited surface oceans https://www.nature.com/articles/s41564-023-01498-5

"marine #diatoms, a globally important group of #algae can switch between #photosynthesis and a light-driven #rhodopsin proton pump to support growth in iron-deprived waters"

#protists #microbes #metabolism #plankton

New pathway of #diatom-mediated #calcification and its impact on the biological pump.

#Skeletonema #carbon_cycling #biogeochemistry

https://phys.org/news/2023-09-pathway-diatom-mediated-calcification-impact-biological.html

I’m super excited by this one. I think, I _think_, this is Amphitetras antediluviana, a new-to-me species of diatom from Cromer. I ADORE their cubic form 🎁 (yes more geometry!)

#marinebiology #marinebiologyuk #northnorfolkcoast #northsea #sea #ocean #biology #phytoplankton #plankton #marinetaxonomy #wildlife #nature #diatom #diatoms #microscopy #microorganism

Oh the wondrous geometry of diatoms! This fabulous triangular number is Triceratium favus.

#marinebiology #marinebiologyuk #northnorfolkcoast #northsea #sea #ocean #biology #phytoplankton #plankton #marinetaxonomy #wildlife #nature #diatom #diatoms #microscopy #microorganism

Can anyone shed any light on this little mystery? Too big to be the diatom Cylindrotheca closterium, my second guess is a dinoflagellate (perhaps Amphisolenia sp.?). What do you think? Any help would be greatly appreciated.

#marinebiology #marinebiologyuk #northnorfolkcoast #northsea #sea #ocean #biology #phytoplankton #plankton #marinetaxonomy #wildlife #nature #diatom #diatoms #microscopy #microorganism

A lovely ladder of colonial diatom Bellerochea malleus.

#marinebiology #marinebiologyuk #northnorfolkcoast #northsea #sea #ocean #biology #phytoplankton #plankton #marinetaxonomy #wildlife #nature #diatom #diatoms #microscopy #microorganism

Twisty twisty! This colonial diatom Asterionellopsis glacialis is increasing in my samples. It has been known to bloom around here so it’ll be interesting to see how, when, and if that happens this year.

#marinebiology #marinebiologyuk #northnorfolkcoast #northsea #sea #ocean #biology #phytoplankton #plankton #marinetaxonomy #wildlife #nature #diatom #diatoms #microscopy #microorganism

I could watch the ballet of colonial diatom Bacillaria paxilliferea for hours. Mesmerising!

#marinebiology #marinebiologyuk #northnorfolkcoast #northsea #sea #ocean #biology #phytoplankton #plankton #marinetaxonomy #wildlife #nature #diatom #diatoms #microscopy #microorganism

https://youtu.be/kxe_ftqOVuc

This is the first time I’ve seen Thalassiosira eccentrica as a joined pair! Can you see the little thread between them joining them together? It’s the little things that get me excited!

#marinebiology #marinebiologyuk #northnorfolkcoast #northsea #sea #ocean #biology #phytoplankton #plankton #marinetaxonomy #wildlife #nature #diatom #diatoms #microscopy #microorganism

More new-to-me species! I’m thinking this diatom is Aulacodiscus argus. Time to do my new species dance! 🕺

#marinebiology #marinebiologyuk #northnorfolkcoast #northsea #sea #ocean #biology #phytoplankton #plankton #marinetaxonomy #wildlife #nature #diatom #diatoms #microscopy #microorganism

The diversity of my samples is definitely on the up! 😍 My first Triceratium favus (a diatom) in valve and girdle view.

#marinebiology #marinebiologyuk #northnorfolkcoast #northsea #sea #ocean #biology #phytoplankton #plankton #marinetaxonomy #wildlife #nature #diatom #diatoms #microscopy #microorganism

This species seems to be increasing in my samples at the moment - Asterionellopsis glacialis

#marinebiology #marinebiologyuk #northnorfolkcoast #northsea #sea #ocean #biology #phytoplankton #plankton #marinetaxonomy #wildlife #nature #diatom #diatoms #microscopy #microorganism

I made a thing…

#marinebiology #marinebiologyuk #northnorfolkcoast #northsea #sea #ocean #biology #phytoplankton #plankton #marinetaxonomy #wildlife #nature #diatom #diatoms #microscopy #microorganism #zooplankton

Thalassiosira punctigera I believe! A great opportunity to see this diatom in girdle _and_ valve view.

#marinebiology #marinebiologyuk #northnorfolkcoast #northsea #sea #ocean #biology #phytoplankton #plankton #marinetaxonomy #wildlife #nature #diatom #diatoms #microscopy #microorganism

Can anyone help me with this mystery? I find lots of these short chains of diatoms in my samples. Is it a Chaetoceros sp. ? The examples always have these short setae. And if so, which one!!?? This is also my first attempt at stacking. 😬

#marinebiology #marinebiologyuk #northnorfolkcoast #northsea #sea #ocean #biology #phytoplankton #plankton #marinetaxonomy #wildlife #nature #diatom #diatoms #microscopy #microorganism

I’m really happy with this shot of a colony of Bellerochea malleus from Cromer.

#marinebiology #marinebiologyuk #northnorfolkcoast #northsea #sea #ocean #biology #phytoplankton #plankton #marinetaxonomy #wildlife #nature #diatom #diatoms #microscopy #microorganism

I was super stoked to capture the difference in segment heights on the frustule of this diatom. Actinoptychus senarius.

#marinebiology #marinebiologyuk #northnorfolkcoast #northsea #sea #ocean #biology #phytoplankton #plankton #marinetaxonomy #wildlife #nature #diatom #diatoms #microscopy #microorganism

My first Odontella rhombus f. trigona (_I think_). A three-sided joy to behold!

#marinebiology #marinebiologyuk #northnorfolkcoast #northsea #sea #ocean #biology #phytoplankton #plankton #marinetaxonomy #wildlife #nature #diatom #diatoms #microscopy #microorganism

A big, lovely Coscinodiscus radiatus from my latest sample.

#marinebiology #marinebiologyuk #northnorfolkcoast #northsea #sea #ocean #biology #phytoplankton #plankton #marinetaxonomy #wildlife #nature #diatom #diatoms #microscopy #microorganism

My first Skeletonema costatum! Hurrah and huzzah!

#marinebiology #marinebiologyuk #northnorfolkcoast #northsea #sea #ocean #biology #phytoplankton #plankton #marinetaxonomy #wildlife #nature #diatom #diatoms #microscopy #microorganism

The sweet #ocean - Searching for a polysaccharide: Combining #omics with functional enzyme characterization to directly link #bacteria and #microalgae https://microbiologycommunity.nature.com/posts/the-sweet-ocean-searching-for-a-polysaccharide #algae #protists #diatoms

Marine #bacteroidetes use a conserved enzymatic cascade to digest #diatom β-mannan: Irena Beidler et al. https://www.nature.com/articles/s41396-022-01342-4